Add support in generate scripts to handle Conditional

Source/build/scripts/make_qualified_names.py

 #!/usr/bin/env python
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
     defaults = {
     }
     default_parameters = {
         'attrsNullNamespace': None,
         'namespace': '',
         'namespacePrefix': '',
         'namespaceURI': '',
     }
     filters = {
         'hash': hasher.hash,
+        'enable_conditional': name_utilities.enable_conditional_if_endif,
+        'symbol': _symbol,
         'to_macro_style': name_utilities.to_macro_style,
-        'symbol': _symbol,
     }
 
     def __init__(self, in_file_paths):
         super(MakeQualifiedNamesWriter, self).__init__(None)
         assert len(in_file_paths) <= 2, 'MakeQualifiedNamesWriter requires at most 2 in files, got %d.' % len(in_file_paths)
 
         if len(in_file_paths) == 2:
             self.tags_in_file = InFile.load_from_files([in_file_paths.pop(0)], self.defaults, self.valid_values, self.default_parameters)
         else:
             self.tags_in_file = None
@@ skipping 30 matching lines @@
     def generate_header(self):
         return self._template_context
 
     @template_expander.use_jinja('MakeQualifiedNames.cpp.tmpl', filters=filters)
     def generate_implementation(self):
         return self._template_context
 
 
 if __name__ == "__main__":
     in_generator.Maker(MakeQualifiedNamesWriter).main(sys.argv)